package com.atguigu.eduservice.controller;


import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.EduTeacherService;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author testjava
 * @since 2021-09-20
 */
@Api(tags = "讲师管理")
@RestController
@RequestMapping("/eduservice/teacher")
public class EduTeacherController {
    //Service注入

    @Autowired
    private EduTeacherService teacherService;
    //查询讲师表的所有数据
    //rest风格
    @ApiOperation(value="所有讲师列表")
    @GetMapping("/findAll")
    public R findAllTeacher() {
        //调用service方法实现查询所有的操作
        List<EduTeacher> list = teacherService.list(null);
        return R.ok().data("items", list);
    }

    //逻辑删除讲师的方法
    @ApiOperation(value="逻辑删除讲师")
    @DeleteMapping("/{id}")
    public R removeTeacher(
            @ApiParam(name="id", value="讲师ID", readOnly = true)
            @PathVariable String id) {
        boolean res = teacherService.removeById(id);
        if(res) {
            return R.ok();
        } else {
            return R.error();
        }
    }
    //3.分页查询讲师的方法
    //current当前页 limit每页多少
    @GetMapping("/pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,
                             @PathVariable long limit) {
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current, limit);

        //调用方法实现分页
        //调用方法时候，底层封装，把分页所有数据封装大pageTeacher对象里面
        teacherService.page(pageTeacher, null);
        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords();
        return R.ok().data("total", total).data("rows", records);
    }

    //4.条件查询加分页
    @PostMapping("/pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current,
                                  @PathVariable long limit,
                                  @RequestBody(required = false) TeacherQuery teacherQuery) {
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current, limit);
        //构建条件
        QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();
        //动态sql，判断条件值是否为空 否的话拼接上
        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();
        if(!StringUtils.isEmpty(name)) {
            wrapper.like("name", name);
        }
        if(!StringUtils.isEmpty(level)) {
            wrapper.eq("level", level);
        }
        if(!StringUtils.isEmpty(begin)) {
            wrapper.ge("gmt_create", begin);
        }
        if(!StringUtils.isEmpty(end)) {
            wrapper.le("gmt_create", end);
        }
        //排序
        wrapper.orderByDesc("gmt_create");
        //分页查询
        teacherService.page(pageTeacher, wrapper);
        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords();//数据list集合
        return R.ok().data("total", total).data("rows", records);
    }

    //5.添加讲师
    @PostMapping("/addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher) {
        boolean save = teacherService.save(eduTeacher);
        if(save) {
            return R.ok();
        } else {
            return R.error();
        }
    }
    //6.根据Id进行查询功能
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id) {
        EduTeacher eduTeacher = teacherService.getById(id);
        return R.ok().data("teacher", eduTeacher);
    }

    //7.讲师修改功能
    @PostMapping("updateTeacher")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher) {
        boolean res = teacherService.updateById(eduTeacher);
        if(res) {
            return R.ok();
        } else {
            return R.error();
        }
    }
}

